This is a list of lakes in the Ain department on the eastern edge of France.

Lac de Barterand, a lake in Pollieu Lac de Chailloux, a small lake at Contrevoz Lac de Chavoley, a lake at Ceyzérieu Lac de Coiselet, a reservoir Lac de Conflans, a lake at the confluence of the rivers Ain and Valouse Lacs de Conzieu, a group of three small lakes at Conzieu Lac de Crotel, a lake at Groslée Lac de Divonne, an artificial lake at Divonne-les-Bains Lac de Glandieu Lacs des Hôpitaux, a pair of lakes at La Burbanche Lac de Morgnieu, a lake at Ceyzérieu Lac de Nantua, a lake located between Nantua, Montreal-la-Cluse, and Port Lac de Sylans, a lake at Le Poizat Lac de Virieu, a lake at Virieu-le-Grand Lac Genin, a lake fed by underground sources